Means for insulating rail-joints.



B. WOLHAUPTER. MEANS PQRINSULATING RAIL JOINTS.

APPLIOATION FILED APR. 2, 1912.

1,034, 180. Patented July so, 1912.

3 SHEETSSHEET l.

I I arrow,

B. WOLHAUPTER.

MEANS FOR INSULATING RAIL JOINTS.

APPLICATION FILED APR 2,1912.

w mm W m MA m3 mm a m MJ m Q MW 8 x l, A 4 m 3 4V 0, W 1 @MJ B.WOLHAUPTER.

MEANS FOR INSULATING BAIL JOINTS.

APPLICATION FILED APR. 2, 1912.

Patented. July 30, 1912.

3 SHEBTSSHEET 3 )7l 7/fioa a er.

wi/t-nemw-o 'nivrrnn STACiTEfi caries.

BENJAMIN WOLHAUPTER, OF NEW ROCHELLE, NEW YORK, ASSIGNOR TO THE RAILJOINT COMPANY, OF NEW YORK, N. Y., A CORPOEATION OF NEW YORK MEANS FORINSULATING RAIL-JOINTS.

1,034,180 Specification of Letters Patent. Patgnted July 39, 1912,

bars.

Application filed April 2, 1912.

To all whom it may concern;

Be it known that I, BENJAMIN lVoLr-Lmr- TER, a citizen of the UnitedStates, residing at New Rochelle, in the county of Westchester and Stateof New York, have invented certain new and useful Improvements in Meansfor Insulating Rail-Joints, of which the following is a specification.

This invention relates to insulation for rail joints of the insulatedtype, and more particularly to that characterofrail-joint insulationknown as divided-fiber, where in the insulation is in two parts,respectivelyfor the head and base flange portions of the rails, wherebya minimum amount of insulating material may be used to the bestadvantage both electrically and mechanically, and admitting of the readyremoval and replacing; of worn-out pieces of insulation withoutdisturbing or afiecting the remaining good or unworn insulation.

The object of the. present invention is to provide novel and practicalmeans for effecting a locking in place of the separate pieces orsections of insulation in order to secure them against relativedisplacement or creeping under load, conditions imposed thereon, thuscontributing to the life of the insulation and mainglaining its properinsulating relation 'to the rails and to the joint To this end thepresent invention contemplates an improved means for interlock-' 'a fewpractical embodiments of the invention are shown for illustrativepurposes in the accompanyingdrawings, in which Figures 1, 2, 3, and 4cof thedrawings are similar perspective view of an insulated rail ointPI'OVIClBd withinsulation constructed Serial No. 888,106.

and arranged in accordance with the present invention. and respectivelyshowing different modifications thereof; the several views omitting oneof the side joint bars to fully expose the novel insulation. Figs. 5 and(S are similar views of other modifications of the invention, andillustrating the Like references designate corresponding parts in theseveral figures of tlie'drawings. The improved insulation expedientsform-; ingthe sub ect matter of this application are intended to beapplicable to various kinds of rail oints, and hence available for usewith fish plates, plain angle bars, angle bars of the continuous type,channel bars, or any of the divers forms of splices which connect therails andv extend across the joint between them. the invention possessesthe same utility an subserves the same functions.-

- Asabove indicated, the present invention relates to novel means forinterlockingthe two sections or pieces of dlVldGCldl'lSHlatlOl'l forrail joints. This divided-insulation is usually in two parts.respectively for the head and base flange portions of the rails. Theseseparate sections are separately re-.

newable and replaceable, and by way of illustrating: the application ofmy invention thereto, reference is first made to Fig.1 of

" the drawings, wherein is shown an insulated rail joint including therails R, B, side joint bars 1, the usual jointbolts 2 which areinsulated from the joint bars by any of the approved and well known boltinsulat ing expedients (not appearing in the pres- I eat drawings), aninsulating end post 4 between the rail ends, and divided or two-part.

side insulation between. the rails and the oint bars. said insulationcomprising an; upper head section 5, and a lower base secti on 6.

The sections of insulation 5 and 6 are 10) made of the usual fibersheets, or other well. known insulating material, and each of the samemay extend the entire length of the joint, or beef less extent, withoutaffecting the improvements claimed herein. plainly shown in Fig. 1,the-head section of In all of its applications, 75

insulation 5 is arranged above the dine of joint bolts2 and occupies aninsulating position between the under side of the rail heads and thebearing head of the adjoining joint bar, while the lowervor basesectionof insulation 6 is arrangedover the base flange of the rails betweenthe. latter and the foot flange of the joint bar 1, said base section ofinsulation 6 also including at its inner edge an upstanding flangeportion 7 arranged next to the webs of the rails to eiiectually insulatethe bottom inside corners of the joint bars from the rails.

A distinctive feature of the present invention, resides in providing adirect interlock between the head and base sections of. the insulation5and 6 so as to prevent relative longitudinal displacement of said twosections, or downward displacement of the head section of insulation.Various expedients may be utilized for accomplishing this desirableresult. For instance, as sug gested in Fig. 1 of the drawings, theflange portion 7 of each base section of insulation 6 may be providedwith one or more upstanding extension pieces designated by the numeral8, and constituting locking tongues that have a registering interlockingengagement within keeper sockets 9 formed in the lower edge of the headsection of insulation According to this design, these locking tongues orextension pieces 8 project.upward through spaces bet-ween pairs of thejoint b ts 2,'whereby the latter serve as stops to check longitudinalmovement or insulation 6. In this case, the joint bolts secure the headsection 5 against longitudinal displacement, while the head piece inturn prevents longitudinal displacement or creeping of the base sectionof insulation 6.

A further modification of the invention as shown in Fig. 3 of thedrawings, consists in combining, with the construction and arrangementof parts shown in Fig. 1 of the drawings. the additional feature ofextendingthe flange portion 7, of the base section of insulation 6, intothe line or horizontal plane of the joint bolts 2, and providing suchflange portion in its upper edge with a series of bolt-receivingrecesses 12, through which the joint bolts 2 extend. Accordnosa'iaoingly, this construction provides means for directly interlocking thebase section of insulation 6 with the joint bolts to check and reventlongitudinal displacement or creepmg of the said base section ofinsulation 6,

wh'ile the latter in turn performs a similar .,.the' joint bolts 2andprovided in its lower edge with a series of bolt-receiving recesses 14:through which the joint bolts extend and prevent the'head section ofinsulation from longitudinal displacement or creeping, while the headsection of insulation in turn performs a similar function for the basesection of insulation.

By way of illustrating the wide range of modification that may beresorted to, as well as the adaptability of the improvements to variouskinds of joints and joint bars, there is shown in Fig. 5 of the drawingsa rail joint including a joint bar 15 of the well known continuous type,and to adapt the I invention to this type of joint bar, the base sectionof insulation 6 1s provided with a bottom piece or member 16 that isinterposed between the bottom of the rails and the rail supporting baseplate of the joint bar. Furthermore it will be observed that, in

Fig. 5 of the drawings, there is suggested the expedient of providingthe base section of insulation 6 with wide upstanding extension piecesor ton cs 18 having bolt openings 19 that receive a pair of joint bolts,said extensions or tongues 18 interlocking within keeper sockets ornotches 20 formed in the lower edge of the head section of insulation 5,which construction secures the positive locking of one section ofinsulation against longitudinal displacement, while the said section ofinsulation locks the other section of insulation against longitudinaldisplacement or movement.

A variation in the form of the invention suggested in Fig. 5 of thedrawings is shown in Fig. 6 and may consist in forming one of thesections of insulation with single locking tongues or extensions 21engaging keeper sockets or notches 22 in the other seetion ofinsulation, and provided with single bolt holes 23 for receiving one ofthe joint bolts. For illustrative purposes, these looking tongues orextensions 21 are shown as being projected downwardly from the uppersection of insulation 5.

Various other modifications, and various. changes in the form,proportion and minor details of construction may be resorted to withoutdeparting from the spirit or sacri-v tion, and locking means, includinga separa his connection between said sections, for

holding both sectionsof insulation against longitudinal movement. .v

2. In an insulated rail joint, the combination with the rails and thesplices therefor, of separate head and base sections of insulat-ion,'andmeans for interlocking the two sections of insulation and preventinglongitudinal movement thereof. 3. In an insulated rail joint, thecombination with the rails and the splices therefor, of separate headand base sections of insulation, and means for directly interlocking thetwo sections of insulation and preventing longitudinal movement thereof.4. In an insulated rail joint, the combination with the rails and thesplices therefor,

of separate head and base sections of insula' tion, means forinterlocking the two sections of insulation, and means for preventinglongitudinal movement of said sections.

5. In an insulated rail joint, the combination with the rails and'thesplices therefor, of separate head and base sect-ions of insulation,means for interlocking the two sections of insulation, and means,including the j oint bolts, for preventing longitudinal movement of saidsections.

6. In an insulated rail joint, the combinae tion with the rails and thesplices therefor,

of separate head and base sections of insulation, means for separablyinterlocking one section of insulation with the other, and means,including the joint bolts, for preventing longitudinal movement of saidsections.

7. In an insulated rail joint, the combination with the rails and-thesplices therefor,

of separate head and base sections of insulation, means for 'separablyand directly interlocking one section of insulation with the other, andmeans, including the joints bolts, for prevent-mg longitudlnal movementof said sections.

8. -In an insulated rail joint, the combination with the-rails and thesplicestherefor, of separate head and baseseotions of insulation, oneofwhich sections is provided with looking members separably interlockedwith the other section of insulation, and cooperating means between thejoint bolts and one of said sect-ions for arresting longitudinalmovement of said section.

9. In an insulated rail joint, thecomhination with the rails and thesplices therefor of separate head and base sections of insulation, oneof which sections is providedtherein with keeper notches, and the otherof which? sect-ions is provided with looking tongues interlocking withsaid notches;

10. In -an insulated rail joint, the'conibt' nation with the rails andthe splicesitherefor, of separate head and base sect-ion'sfo finsulation, one of which sections is provided withkeeper notch es, andthe other of which sections is provided with looking tonguesinterlocking within said notches and adapt ed to have a stop engagementwith" the joint 7 bolts, v I v 11. Inan insulated rail joint, thecombination with the rails and the splices therefor, of separate headand base sections of insulation, one 0t which sections is provided withkeeper sockets, and the other of which sections is provided with-lockingtongues projecting between joint bolts and interlock.- ing with saidsockets.

12. In an insulated rail joint, the combination with the rails and thesplices thereinsulation arranged respectively above and below the lineof joint bolts, the head -sec-' tion having keeper sockets in its edge,and

the base section of insulation having upstanding locking tonguesinterlocking with a stop enfor, of separate head and base sections oftions of insulation and thejoint bolts to ar-' rest longitudinalmovement. r

In testimony whereof I hereunto my signature in the presence of twowitnesses. I

, BENJAMIN: WVOLHAUPTER.

Witnesses:

E. F. SCEERMERHORN, K. MCNALLY.

Copies of this patent may be obtained in: fivejcentscacmhy' addressingthe ff Commissioner of Eatents.

Washington, D. G.

